| 1 | Installing a test scripts server on XVM |
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| 2 | ======================================= |
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| 3 | |
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| 4 | It's useful to have a less secure scripts server for testing |
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| 5 | purposes. Here's what you have to do: |
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| 6 | |
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| 7 | 1. Creating the VM |
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| 8 | ------------------ |
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| 9 | |
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| 10 | To authenticate to xvm.mit.edu with root tickets, you need |
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| 11 | a browser that suppors SPNEGO; Firefox is one such browser and |
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| 12 | the following instructions will assume it. Browse to about:config |
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| 13 | and modify the key 'network.negotiate-auth.trusted-uris' to be |
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| 14 | |
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| 15 | https://xvm.mit.edu:442/* |
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| 16 | |
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| 17 | Then, with active root tickets on your system, navigate to |
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| 18 | |
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| 19 | https://xvm.mit.edu:442/ |
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| 20 | |
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| 21 | You should be logged in as root, and if you are on scripts-root |
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| 22 | you should be able to assign ownership to scripts. |
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| 23 | |
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| 24 | [XXX: there should be a way to do this with remctl too] |
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| 25 | |
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| 26 | 2. Configure |
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| 27 | ------------ |
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| 28 | |
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| 29 | Lest you be tempted to skimp on RAM: you must have more than 700MBish |
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| 30 | to install Fedora; 1024MB is a good amount is a good amount to give to |
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| 31 | the server. Disk space on order of 40G is probably good enough. |
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| 32 | |
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| 33 | While it is best to use the install CD from the most recent version |
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| 34 | of Fedora, any kernel which supports Kickstarting can be used. A good |
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| 35 | bet is to use the Netboot CD from the latest version of Fedora that |
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| 36 | XVM has (since XVM is sort of bad about keeping their boot CDs up to |
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| 37 | date.) Since you're doing an install CD, it's going to be an HVM. |
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| 38 | |
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| 39 | You will need VNC access to perform the installation process. If you have |
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| 40 | Java, just go to the Console page for the VM; if you do not, you can use |
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| 41 | the following set of incants to setup a local VNC server which can talk |
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| 42 | to the console: |
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| 43 | |
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| 44 | athrun xvm invirt-vnc-client -a $AUTHTOKEN |
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| 45 | vncviewer localhost |
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| 46 | |
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| 47 | where AUTHTOKEN is the contents of the AUTHTOKEN param on the console page |
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| 48 | (which would have had the Java applet.) |
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| 49 | |
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| 50 | On the bootloader screen (usually it gives you a bunch of options |
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| 51 | such as "Install" or "Advanced"), press TAB and edit the kernel boot |
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| 52 | line to append the text: |
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| 53 | |
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| 54 | ks=http://ezyang.scripts.mit.edu/kickstart/scripts.php?type=xvm&release=$RELEASE_NO&hostname=scripts-f$RELEASE_NO-test.xvm.mit.edu |
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| 55 | |
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| 56 | with $RELEASE_NO interpolated properly. You should keep around any initrd |
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| 57 | lines since the kernel image still needs to know how to boot up. |
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| 58 | |
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| 59 | XXX the kickstart file needs to live in a less sketchy place |
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| 60 | |
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| 61 | The install process will ask you for a password. Do NOT use the |
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| 62 | scripts-root password. We have a password in |
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| 63 | /mit/scripts/Private/scripts-test-passwd which we tend to use. |
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| 64 | |
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| 65 | We don't know how to convert to ParaVM yet, because latest Fedora |
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| 66 | uses Grub2 but XVM's bootloader doesn't understand how to read it |
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| 67 | (see also the Scripts patches we manually applied to our hosts.) |
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| 68 | |
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| 69 | 3. Debugging |
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| 70 | ------------ |
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| 71 | |
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| 72 | Get dropped into dracut:#/ ? Check for 'Warn' in dmesg (dmesg | grep Warn) |
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| 73 | and fix any problems that are stopping Dracut from proceeding. |
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